关键词: 智能装配, 典型部件, 装配特征, 装配主线, 匹配推理

Abstract: Aiming at the problem of assembly efficiency caused by the demand for intelligent enhancement and human-computer interaction in the product assembly process,an intelligent assembly method of typical parts guided by Assembly Main Thread (AMT) was proposed.According to the assembly structure,feature matching and other attributes of parts,by extracting the matching association information of Assembly Feature Pairs (AFP) and assembly feature serialization,the matching relationship of Assembly Features (AF) was simplified equivalently,and the matching relationship graph of AFs was constructed.The concept of AMT was introduced to complete the classification of AMT and the intelligent assembly of various AMTs within the AMT by the main route of component assembly and associated assembly matching.Guided by the matching locating among the AMTs,the degree of freedom protocol of features matching and the assembly sequence planning,the assembly matching sequence and relation among the AMTs at all levels were constructed by matching the AMT ports.Based on feature matching constraint mapping,AFP matching reasoning algorithm and assembly modeling intelligent algorithm,the dynamic intelligent assembly of typical components was realized.The feasibility and effectiveness of the proposed method were verified by an example.

Key words: intelligent assembly, typical components, assembly feature, assembly main thread, matching reasoning